[PATCH v3 1/3] t1517: fixup for ua/t1517-short-help-tests

["D. Ben Knoble" <ben.knoble+github@gmail.com>]

- fix instaweb test prereqs

Signed-off-by: D. Ben Knoble <ben.knoble+github@gmail.com>
---
 t/t1517-outside-repo.sh | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/t/t1517-outside-repo.sh b/t/t1517-outside-repo.sh
index 8a417af47a..3dc602872a 100755
--- a/t/t1517-outside-repo.sh
+++ b/t/t1517-outside-repo.sh
@@ -123,7 +123,13 @@
 	*)
 		expect_outcome=expect_success ;;
 	esac
-	test_$expect_outcome "'git $cmd -h' outside a repository" '
+	case "$cmd" in
+	instaweb)
+		prereq=PERL ;;
+	*)
+		prereq= ;;
+	esac
+	test_$expect_outcome $prereq "'git $cmd -h' outside a repository" '
 		test_expect_code 129 nongit git $cmd -h >usage &&
 		test_grep "[Uu]sage: git $cmd " usage
 	'
-- 
2.48.1